B777 spoilers don't fully deflect if pitch angle at touchdown is high?

[extricate]

Hi there,

As topic mentions, anybody has any info regarding this? As per this video, the first landing

https://www.youtube.com/watch?v=7cpuWAYyyMo&t=27s

[bigduke6]

On B-744, the spoiler deployment give a nose pitch up moment. I assume that is also the case with the 777.

So maybe part of the tailstrike protection software, to reduce/cancel any pitch up moment if the tail is too close to the ground?

[extricate]

Originally Posted by bigduke6

On B-744, the spoiler deployment give a nose pitch up moment. I assume that is also the case with the 777.

So maybe part of the tailstrike protection software, to reduce/cancel any pitch up moment if the tail is too close to the ground?

Interesting, I noticed that on the B747 too

[wiggy]

I'd be wary of drawing too many comparisons, especially with regard to software - the 777 is FBW, the 747 isn't.

[tdracer]

Originally Posted by wiggy

I'd be wary of drawing too many comparisons, especially with regard to software - the 777 is FBW, the 747 isn't.

Depends on which model 747. IIRC, the spoilers on the 747-8 are FBW (unlike the previous versions of the 747).

[wiggy]

Originally Posted by tdracer

Depends on which model 747. IIRC, the spoilers on the 747-8 are FBW (unlike the previous versions of the 747).

Ah ha...thank you...

[Three Wire]

If you saw this on your approach and landing, then you used a less than optimal technique. Time to reread the FCTM and rethink your technique.